Odpowiedź:
[tex] {4}^{2} + {2}^{2} = {x}^{2} \\ 16 + 4 = {x}^{2} \\ 20 = {x}^{2} \\ x = \sqrt{20} \\ x = 2 \sqrt{5} \\ \\ {8}^{2} + {x}^{2} = {10}^{2} \\ 64 + {x}^{2} = 100 \\ {x }^{2} = 36 \\ x = \sqrt{36} \\ x = 6 \\ \\ \\ {x}^{2} + {6}^{2} = {10}^{2} \\ {x }^{2} = 100 - 36 \\ x = \sqrt{64} \\ x = 8 \\ \\ {16}^{2} + {x}^{2} = {20}^{2} \\ 256 + {x }^{2} = 400 \\ {x }^{2} = 134 \\ x = \sqrt{134} \\ [/tex]
